Assessing the invasion speed of triatomine populations, chagas disease vectors evaluación de la velocidad de invasión de poblaciones de vectores triatominos de la enfermedad de chagas
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| Autores: | , |
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| 格式: | artículo original |
| 状态: | Versión publicada |
| Fecha de Publicación: | 2019 |
| 实物特征: | Spraying insecticides to control triatomine populations, the vectors of Chagas disease, does not prevent the disease’s reemergence in infested areas. Mathematical models try to explain this reemergence in terms of the factors underlying sylvatic transmission of the parasite Trypanosoma cruzi. The presence of reservoir hosts such as woodrats is essential to the infection’s geographical spread. This study models a vector-host system using integrodifference equations to incorporate dispersal as well as hostvector interactions. These equations capture, simultaneously, the three processes taking place between successive generations: demography, infection and spatial dispersal. Travelling waves, the solutions of the integrodifference equations thus derived, allow one to calculate numerically the invasion speed of the disease. Neubert-Caswell’s theorem can then be applied to calculate the analytical invasion speed. |
| País: | Portal de Revistas UCR |
| 机构: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| 语言: | Inglés |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/39949 |
| 在线阅读: | https://revistas.ucr.ac.cr/index.php/matematica/article/view/39949 |
| Access Level: | acceso abierto |
| Palabra clave: | Chagas disease vector-host contacts integrodifference equations travelling waves invasion speed enfermedad de Chagas interacción vector-hospedero ecuaciones de integrodiferencias ondas viajeras velocidad de invasión |